HttpServletResponse獲取請求參數 · JavaWeb學習

![](https://box.kancloud.cn/33de5fd7d0e5041bb6452107d8bcc4a0_491x243.png) HelloServlet.java ~~~ package zyw.servlet; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; public class HelloServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { //System.out.println("接收到get請求"); //獲取請求行 /* System.out.println("請求方式："+req.getMethod()); System.out.println("URI："+req.getRequestURI()); System.out.println("發出請求客戶端IP地址："+req.getRemoteAddr()); System.out.println("服務點接收請求的IP地址："+req.getLocalAddr()); System.out.println("訪問客戶端的端口號："+req.getRemotePort()); System.out.println("web應用路徑："+req.getContextPath()); System.out.println("http協議和版本："+req.getProtocol());*/ //獲取請求頭 // Enumeration枚舉類型 /* Enumeration<String> headerNames = req.getHeaderNames();//自動補全變量名稱 : Ctrl + Alt + v while (headerNames.hasMoreElements()){ String element = headerNames.nextElement(); System.out.println(element+":"+req.getHeader(element)); }*/ //獲取請求參數 String name = req.getParameter("name"); String passWord = req.getParameter("passWord"); System.out.println("用戶名："+name); System.out.println("密碼："+passWord); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { System.out.println("接收到post請求"); } } ~~~ get.html ~~~ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> </body> <center> <h2>發起HTTP get請求</h2> <form action="hi" method="get"> <p>賬號: <input type="text" name="name" /></p> <p>密碼: <input type="text" name="passWord" /></p> <input type="submit" value="提交" /> </form> </center> </html> ~~~ ![](https://box.kancloud.cn/e48e3bf8c3866c89d38be683f9666f79_1026x230.png) 結果： ![](https://box.kancloud.cn/a5ccf7fb038d22c0ff12206fc5459d7b_600x89.png)